/*
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree.
 */

typedef int T;
using U = T;

T x;
U y;

template <typename T>
struct S {};

using V = S<S<T>>;
